Malcolm Sinclair
Rudolf Rassendyll / King Rudolf V
Pauline Moran
Antoinette de Mauban
John Woodvine
Colonel Sapt
Jonathon Morris
Rupert of Hentzau
Nicholas Gecks
Fritz von Tarlenheim
Victoria Wicks
Princess Flavia
George Irving
Michael, Duke of Streisau ('Black Michael')
Clyde Gatell
Krafstein
Robin Langford
Detchard
Benjamin Feitelson
De Gautet
David Landberg
Bersonin
Michael Eriera
Lauengram
George Waring
Prefect of Police
John Moore
Josef
Peter Copley
Marshal Strakencz
Lucien Morgan
Lt. Fritz Von Hartheim (uncredited)
Elaine Ford
Peasant Girl
Gerald Blackmore
Herald
Gabriel Woolf
Cardinal Archbishop of Streisau
Peggy Shields
Woman Servant – Frau Holf
